Square D | Q1B380 | Circuit Breaker | 3-Pole

Meet the Square D Q1B380, a genuine 3-Pole circuit breaker designed for reliable protection in compatible Square D panels. Ideal for maintenance, retrofit, and replacement projects, this OEM breaker helps you preserve the electrical system’s integrity when exact specifications matter.

• 3-Pole configuration supports multi-conductor protection across three circuits within compatible Square D panels, ensuring synchronized shutdown and consistent protection.
• OEM compatibility is anchored by the part number Q1B380—use this reference to confirm fit and ratings before ordering.
• Clear fit guidance verify compatibility by checking your panel label and matching the Q1B380 specifications to your existing setup, ensuring seamless replacement.
• Trusted design for retrofit engineered to align with Square D’s mounting footprint and electrical characteristics, reducing the guesswork during panel upgrades or replacements.
• Maintenance-friendly choice a straightforward, reliable option when you need a like-for-like replacement that preserves original performance and protection levels.

Use cases

Whether you’re renewing an aging panel, consolidating circuits, or performing routine maintenance, the Q1B380 3-Pole breaker offers a straightforward path to restoring safe, dependable operation. It’s particularly well-suited for projects where staying within Square D’s ecosystem is important to maintain protection coordination and panel compatibility.

Fit & compatibility checklist

• Check the target panel’s labeling for supported breaker types and trip ratings.
• Match the exact part number: Q1B380, to ensure the correct 3-Pole configuration and footprint.
• Confirm that the operating voltage and current ratings align with your system requirements as indicated on the panel door or existing breakers.
• If in doubt, reference the panel’s documentation and use the Q1B380 as the best compatibility reference when sourcing a replacement.

In summary, the Square D Q1B380 3-Pole circuit breaker is a purpose-built, OEM solution for maintenance, retrofit, and replacement scenarios where precise compatibility is essential. It preserves protection characteristics and installation harmony within Square D installations, helping you keep electrical systems safe and up to spec.